This is not the thought police.
Let's go Occam on this shit.
This guy over a period of time becomes more and more unhinged with his facebook postings, more erratic with his language and more fringe with his beliefs. You knew him, and what he is saying now is quite different than how you remember him. That's worrisome, watching somebody slide into derangement. Then he starts posting things about heading out to start a revolution, and sharpening his axe, and... well, yeah maybe he's just posting things.
That's the problem, though. When someone becomes erratic like that, it's hard to tell how far off the deep end they may have gone.
Most likely a friend or family member alerted authorities, not to protect any generals or presidents but rather to protect this guy from harming himself, because they believed that he had become delusional and fundamentally disconnected from reality. That shit really happens, and it's really painful to see, and if you know anyone like that do try and get help for them because they will need it.
I've had a friend involuntarily committed several times. Going off meds is a bad thing. The things I've been told while visiting... it really is painful, I don't have another word for it. Here's someone you care about and they're just crazy. The radio is playing songs specifically for them, the meanings speak about them and their situation. Things in their personal life are happening (except they actually aren't). Convinced of things that haven't happened, that aren't true, but they have a memory of it and know it's true and you know it's not and they can't believe you, and hell, you're afraid to speak out and correct them because while they're receiving care (against their will, yes) they're convinced that the doctors are actually experimenting on them and it's all part of a conspiracy to keep them quiet, to keep them down, to dull their mind -- and if you try and disagree with them, you're suddenly all a part of that mess and if you just stay quiet and let the doctors help them at least you can still visit and make them smile so they have a bright part of their day while they're recovering.
This was NOT because of his political views, this was and is only about Raud's mental illness (or lack thereof, although I very seriously doubt that he is not mentally ill).